Author: Paulo Soares
Date: 22:26:23 12/17/99
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On December 17, 1999 at 17:10:12, Albert Silver wrote: >I seem to have run across a bizarre problem and wonder if this might not be a >bug in Fritz (5 or 6) or one of the infamous null-move problems. I was analyzing >the following position which was part of some analysis done on >Yakovich-Stefanova, Sevilla op, 1999: > >r4rk1/p3bppp/nn6/1N6/Ppp1P3/1P2BP2/N3K1PP/R2R4 w - - 0 18 > >In this position the indicated move is 18.Nxa7! Fritz never finds this (at least >up to 14 plies) and I decided to check the lines which follow: 18...cxb3 and >here again, Fritz sees nothing for White and the eval drops with each ply; yet >as soon as I feed it the next move 19.Bxb6 its eval shoots up in White's favour. >What gives? > > Albert Silver Eu acredito que não seja um bug, pois H7.32 e Rebel Century também não jogam Nxa7 em tempo de torneio (PIII-450 HT=60) Não analisei a posição muito tempo, mas tenho dúvidas se Nxa7 é o melhor lance. Paulo I believe that is not a bug, because H7.32 and Rebel Century don't play Nxa7 in tournament time (PIII-450 HT=60). I didn't analyze the position much time, but I have doubts if Nxa7 are the best move. Paulo Soares, from Brazil
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